﻿<!DOCTYPE html>
<HTML>
<HEAD>
  <TITLE> ZTREE DEMO - beforeCheck / onCheck</TITLE>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <link rel="stylesheet" href="../../../css/demo.css" type="text/css">
  <link rel="stylesheet" href="../../../css/zTreeStyle/zTreeStyle.css" type="text/css">
  <script type="text/javascript" src="../../../js/jquery-1.4.4.min.js"></script>
  <script type="text/javascript" src="../../../js/jquery.ztree.core-3.5.js"></script>
  <script type="text/javascript" src="../../../js/jquery.ztree.excheck-3.5.js"></script>
  <!--
  <script type="text/javascript" src="../../../js/jquery.ztree.exedit-3.5.js"></script>
  -->
  <SCRIPT type="text/javascript">
    <!--
    var setting = {
      view: {
        selectedMulti: false
      },
      check: {
        enable: true
      },
      data: {
        simpleData: {
          enable: true
        }
      },
      callback: {
        beforeCheck: beforeCheck,
        onCheck: onCheck
      }
    };

    var zNodes = [
      { id: 1, pId: 0, name: "随意勾选 1", open: true },
      { id: 11, pId: 1, name: "随意勾选 1-1" },
      { id: 12, pId: 1, name: "随意勾选 1-2", open: true },
      { id: 121, pId: 12, name: "随意勾选 1-2-1" },
      { id: 122, pId: 12, name: "随意勾选 1-2-2" },
      { id: 2, pId: 0, name: "禁止勾选 2", open: true, doCheck: false },
      { id: 21, pId: 2, name: "禁止勾选 2-1", doCheck: false },
      { id: 22, pId: 2, name: "禁止勾选 2-2", checked: true, open: true, doCheck: false },
      { id: 221, pId: 22, name: "禁止勾选 2-2-1", doCheck: false },
      { id: 222, pId: 22, name: "禁止勾选 2-2-2", checked: true, doCheck: false },
      { id: 23, pId: 2, name: "禁止勾选 2-3", doCheck: false }
    ];

    var code, log, className = "dark";

    function beforeCheck(treeId, treeNode) {
      className = (className === "dark" ? "" : "dark");
      showLog("[ " + getTime() + " beforeCheck ]&nbsp;&nbsp;&nbsp;&nbsp;" + treeNode.name);
      return (treeNode.doCheck !== false);
    }

    function onCheck(e, treeId, treeNode) {
      showLog("[ " + getTime() + " onCheck ]&nbsp;&nbsp;&nbsp;&nbsp;" + treeNode.name);
    }

    function showLog(str) {
      if (!log) log = $("#log");
      log.append("<li class='" + className + "'>" + str + "</li>");
      if (log.children("li").length > 6) {
        log.get(0).removeChild(log.children("li")[0]);
      }
    }

    function getTime() {
      var now = new Date(),
        h = now.getHours(),
        m = now.getMinutes(),
        s = now.getSeconds(),
        ms = now.getMilliseconds();
      return (h + ":" + m + ":" + s + " " + ms);
    }

    function checkNode(e) {
      var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
        type = e.data.type,
        nodes = zTree.getSelectedNodes();
      if (type.indexOf("All") < 0 && nodes.length == 0) {
        alert("请先选择一个节点");
      }

      if (type == "checkAllTrue") {
        zTree.checkAllNodes(true);
      } else if (type == "checkAllFalse") {
        zTree.checkAllNodes(false);
      } else {
        var callbackFlag = $("#callbackTrigger").attr("checked");
        for (var i = 0, l = nodes.length; i < l; i++) {
          if (type == "checkTrue") {
            zTree.checkNode(nodes[i], true, false, callbackFlag);
          } else if (type == "checkFalse") {
            zTree.checkNode(nodes[i], false, false, callbackFlag);
          } else if (type == "toggle") {
            zTree.checkNode(nodes[i], null, false, callbackFlag);
          } else if (type == "checkTruePS") {
            zTree.checkNode(nodes[i], true, true, callbackFlag);
          } else if (type == "checkFalsePS") {
            zTree.checkNode(nodes[i], false, true, callbackFlag);
          } else if (type == "togglePS") {
            zTree.checkNode(nodes[i], null, true, callbackFlag);
          }
        }
      }
    }

    function setAutoTrigger(e) {
      var zTree = $.fn.zTree.getZTreeObj("treeDemo");
      zTree.setting.check.autoCheckTrigger = $("#autoCallbackTrigger").attr("checked");
      $("#autoCheckTriggerValue").html(zTree.setting.check.autoCheckTrigger ? "true" : "false");
    }

    $(document).ready(function() {
      $.fn.zTree.init($("#treeDemo"), setting, zNodes);
      $("#checkTrue").bind("click", { type: "checkTrue" }, checkNode);
      $("#checkFalse").bind("click", { type: "checkFalse" }, checkNode);
      $("#toggle").bind("click", { type: "toggle" }, checkNode);
      $("#checkTruePS").bind("click", { type: "checkTruePS" }, checkNode);
      $("#checkFalsePS").bind("click", { type: "checkFalsePS" }, checkNode);
      $("#togglePS").bind("click", { type: "togglePS" }, checkNode);
      $("#checkAllTrue").bind("click", { type: "checkAllTrue" }, checkNode);
      $("#checkAllFalse").bind("click", { type: "checkAllFalse" }, checkNode);

      $("#autoCallbackTrigger").bind("change", {}, setAutoTrigger);
    });
    //-->
  </SCRIPT>
</HEAD>

<BODY>
<h1>用 zTree 方法 勾选 checkbox</h1>
<h6>[ 文件路径: excheck/checkbox_fun.html ]</h6>
<div class="content_wrap">
  <div class="zTreeDemoBackground left">
    <ul id="treeDemo" class="ztree"></ul>
  </div>
  <div class="right">
    <ul class="info">
      <li class="title">
        <h2>1、beforeCheck / onCheck 事件回调函数控制</h2>
        <ul class="list">
          <li>利用 beforeCheck / onCheck 事件回调函数 可以控制是否允许 更改 节点勾选状态，这里简单演示如何监控此事件</li>
          <li>
            <p>
              这里还演示了 checkNode / checkAllNodes 方法触发 beforeCheck / onCheck 事件回调函数的情况，试试看：<br/>
              &nbsp;&nbsp;&nbsp;&nbsp;<input type="checkbox" id="autoCallbackTrigger"/> setting.check.autoCheckTrigger: <span id="autoCheckTriggerValue">false</span><br/>
              &nbsp;&nbsp;&nbsp;&nbsp;<input type="checkbox" id="callbackTrigger" checked/> 执行勾选方法是否触发 callback <br/>
              &nbsp;&nbsp;&nbsp;&nbsp;单节点--[ <a id="checkTrue" href="#" title="不想勾选我就不勾选你..." onclick="return false;">勾选</a> ]
              &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="checkFalse" href="#" title="不想取消勾选我就不取消你..." onclick="return false;">取消勾选</a> ]
              &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="toggle" href="#" title="你想怎样？..." onclick="return false;">勾选 切换</a> ]<br/>
              &nbsp;&nbsp;&nbsp;&nbsp;单节点 ( 影响父子 )--[ <a id="checkTruePS" href="#" title="不想勾选我就不勾选你..." onclick="return false;">勾选</a> ]
              &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="checkFalsePS" href="#" title="不想取消勾选我就不取消你..." onclick="return false;">取消勾选</a> ]
              &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="togglePS" href="#" title="你想怎样？..." onclick="return false;">勾选 切换</a> ]<br/>
              &nbsp;&nbsp;&nbsp;&nbsp;全部节点--[ <a id="checkAllTrue" href="#" title="不管你有多NB，统统都要听我的！！" onclick="return false;">勾选</a> ]
              &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="checkAllFalse" href="#" title="不管你有多NB，统统都要听我的！！" onclick="return false;">取消勾选</a> ]
            </p>
          </li>
          <li>
            <p>
              <span class="highlight_red">使用 zTreeObj.checkNode / checkAllNodes 方法，详细请参见 API 文档中的相关内容</span><br/>
              beforeCheck / onCheck log:<br/>
              <ul id="log" class="log" style="height: 130px;"></ul>
            </p>
          </li>
        </ul>
      </li>
      <li class="title">
        <h2>2、setting 配置信息说明</h2>
        <ul class="list">
          <li>同 "checkbox 勾选操作" 中的说明</li>
        </ul>
      </li>
      <li class="title">
        <h2>3、treeNode 节点数据说明</h2>
        <ul class="list">
          <li>同 "checkbox 勾选操作" 中的说明</li>
        </ul>
      </li>
    </ul>
  </div>
</div>
</BODY>
</HTML>